ATSC encoding question - Canadian TV, Computing and Home Theatre Forums

downbeat · 2010-07-17, 05:07 AM

I've got a question for the more technically minded folks on the forum.
Let's pretend hypothetical station XYZ has a main channel with HD programming and a sub-channel with SD programming.
The SD sub-channel on this station is only active some of the time and would usually only show a test pattern or some other static image.
Would this station's ATSC encoders dynamically adjust the required bit-rate for each of the channels, or is the bit-rate allocation static for both no matter what is being shown?

2010-07-17, 05:07 AM	#1
downbeat Moderator Join Date: Jul 2003 Location: Calgary Posts: 3,565	ATSC encoding question I've got a question for the more technically minded folks on the forum. Let's pretend hypothetical station XYZ has a main channel with HD programming and a sub-channel with SD programming. The SD sub-channel on this station is only active some of the time and would usually only show a test pattern or some other static image. Would this station's ATSC encoders dynamically adjust the required bit-rate for each of the channels, or is the bit-rate allocation static for both no matter what is being shown?

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